In Imogen Heap's interview with Sound On Sound magazine about her album Ellipse, a photo of her studio includes the caption: "This fixed rack houses the input chain used for non?vocal sources, and includes a Focusrite Liquid 4Pre preamp, Line 6 PodXT guitar processor, Korg rackmounted guitar tuner, TC?Helicon Voiceworks Plus vocal processor and Joemeek VC1 input channel and SC2.2 compressor."

No direct quotes as far as i know...
https://en.wikipedia.org/wiki/Jesper_Str%C3%B6mblad
"Jesper is known for using the Peavey 5150/6505 amp.[6] Strömblad also uses a Line 6 rack-mounted POD just like Gelotte.[6]"

can'T find any direct quotes, though there are references on Wikipedia:
https://en.wikipedia.org/wiki/Bj%C3%B6rn_Gelotte
"He uses a POD XT and other Line 6 equipment, Dunlop custom strings, and Dunlop .88 MM Tortex picks"
https://en.wikipedia.org/wiki/Jesper_Str%C3%B6mblad
"Strömblad also uses a Line 6 rack-mounted POD just like Gelotte"

"With Gong and the Steve Hillage Band, I’m using a Steinberger GL2T guitar, Line 6 PODxt Pro rack unit with a Line 6 pedalboard, and a Fender Twin FSR amp. With System 7, I swap out the Line 6 PODxt Pro for a Zoom 9050 multi-effects processor and also use Cry Baby wah and Boss Compressor pedals. In addition, in System 7, I have a Behringer Xenyx 502 baby mixer that I use to preamp the sound before sending it to our Pioneer DJM-800 Pro DJ mixer with crossfader control."

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review

My favorite and most dearly beloved studio unit,I've gone from the original POD all the way to a Fractal audio AXE-FX ultra,and nothing beats the simplicity,build quality,and transport-ability of the POD XT units.